Yongprayun, R., Wongchai, W. and Punin, W. (2019) “‘D.I.Y. Boiler in Thung Bo Paen Style’ Innovative Energy Management Model by Process Innovation”, Area Based Development Research Journal. Nakhon Si Thammarat, Thailand, 11(4), pp. 291–304. available at: https://so01.tci-thaijo.org/index.php/abcjournal/article/view/193450 (accessed: 29 August 2026).